Valve-facing tool.



F. H. LEWIS. VALVE FACING TOOL.

APPLICATION FILED FEB. l0, l9l7.

WITNESSES:

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41/- 4 TTOR/VEY FREDERICK H. LEWIS, OF MARION, CONNECTICUT.

VALVE-FACING- TOOL.

Specification of Letters Patent.

Patented 0013.8, 1918.

Application filed February 10, 1917. Serial No. 147,818.

To all whom it may concern:

. Be it known that I, FREDERICK H. LEWIS, a citizen of the UnitedStates, and a resident of Marion, county of Hartford, and State ofConnecticut, have invented a certain new and useful Improvement inValve-Facing Tools, of which the following is a full, clear, and exactspecification.

This invention relates to a class of devices adapted to be used forrepairing damaged valves.

My invention has for its object primarily to provide a tool designed tobe employed for permitting valves to be quickly and easily faced as wellas being trued to perfeet accuracy by being ,re-faeed especially whendamaged by wear without requiring the work to be accomplished by expertWorkmanshi as is incident to the methods ordinarily in use, and which is.of an adjustable form to allow valves of various sizes and shapes to berepaired by the use of .the tool, This is accomplished mainly byproviding a frame in which is mounted an adjustable cutter for truingthe head of the valve, and on the frame may be one or more bearings forremovably supporting the'valve so that its stem may be rotated to alsorevolve the head of thevalve in contact with the cutter. 1

:Other objects of the invention are to provide one or more adjustableclamps .to releasably hold the valve stem in the bearings for rotation;to provide an adjustable stop on the frame for retaining the head of thevalve in rotatable contact with the cutter; and to provide a separatehandle adapted .to be detaehably. applied on the valve stem whereby thevalve may be manually rotated when being faced.

A further obj ect of the invention is to .provide a valve facing tool.of a simple, efficient and durable form, and which is susceptible ofbeing made in various sizes and shapes.

A practical embodiment of the invention is represented in theaeeomapnying drawing forming a partof this specification in whichsimilar characters of reference indicate corresponding parts in all theviews, the said invention being more fully described hercinafter, andthen pointed out in the claims at the end of the description.

In the drawing, 1

Figure 1 is a side-elevation of one form the base-plate is a standard,or bar 12 having an angularly bent arm 13 overhanging the base-plate,all of which may be made of any suitable material and in any desiredshape and size.

Through the overhanging angular arm 13 0f the standard 12 is avertically disposed opening 13 in which is a enter, as 14, adaptd to beadjusted upwardly and downwardly relative to the base-plate 11 of theframe 10. The cutter has a substantially round rodshaped body 15 of alength so that its lower end extends some distance below the arm 1.3 ofthe standard 12, while its upper end extends some distance above thisarm of the standard. Projecting downwardly from the lower end of thebody 15 of the cutter 14L is a blade 16 the lower free edge of which iscutaway on (an incline, as at 1,7, which conforms to the beveled edge,as 18, ofthe head 19 of a valve 20 having a stem 21, the valveillustrated being ofa well-known type. Th blade 16 may be provided bycutting-out or notohing approximately one-half of the lower end part ofthe body 15 lengthwise and the inclined edge of the blade isbevelsharpened to a knife edge for trimming the beveled peripheral edgeof .the valve head 19 when being faced, as will be hereinafter morefully explained. A portion Of the eircular body lengthwise thereof iscutaway, as at 22, to provide a flat surface for being engaged by a setscrew 23, which is threaded in an opening 24 in the arm 13 of thestandard 12 for ,releasably locking the cutter 1% against accidentalmovement when adjusted in the .arm of the standard 12. The purpose ofplacing the cutter vertically is that in such a position the cutter willalways engage :the .valve face in the center regardlessof the;

size of, the" head of the valve or its stem, whereas a cutter placedhorizontally would vary its engagements with the valve according to thevarious sizes of its stems and heads.- I have found in practice that myvertically disposed cutter attacking as'it does separate of the frameand connected thereto so as to be adjusted toward and fromeach other aswell as being adjustable in spaced relation to and from the standard 12of the frame of the tool. The adjustable posts '25 and 26 are of similarformations, and each post has a substantially rectangular body portion27 with a substantially rectangular flange 28 projectinglaterally fromits lower end. Extending upwardly from the top of one end of the bodyportion of each of the posts 25 and 26 is a vertically disposed arm 29of approximately one-half the size or less, as viewed transversely, ofthe perimeter of the rectangular body of the post, and on the upper endof the arm 29 of each post is a head 30 overhanging in spaced relationill: second end of the body portion 27. By spacing the heads 30 fromthebody portions of the posts a recess, as 31, is provided in one of theedges of each post. In the center of the second end of the top of thebody por tion 27 of each post is a bearing 32, and these bearings arepreferably in the forms of substantially v-shaped notches" disposedcrosswise of the body portion, while vertically through the head 30 ofeach post is a threaded opening 33 the center of which is 011 alinementwith the center of the bearing of its respective post. The posts 25 and26 are arranged on the base-plate 11 of the frame of the tool so thatthe apices of the V-shaped bearings 32 are on the same relative planelongitudinally as well as being in opposed relation to the cutting edge17 of the blade 16 of the cutter 14. The rectangu- 'lar flanges 28 ofthe posts 25 and 26 will thereby be disposed transversely of the baseplate of the frame of the tool, and serving to releasably fasten theflanges to the baseplate of the frame to permit the posts to be adjustedtoward and from each other as well as toward and from the cutter 14, inthe ends of the flange of each of the posts are elongated slots 34 and35. Through-the slots 34 and 35 of the flange of eachpost are rotatablydisposed finger or machine set screws, as 36 and 37, and these screwsofeach post arepassed into threaded openings in the base-plate 11 of theframe. By tightening the finger screws or set screws 36 and 37 the postswill be held on the frame against accidental displacement, and byloosening these set screws the post may be suitably adj usted on thebase-plate relatively to the cutter 14 and also with respect to eachother.

' Toface a valve by the use of the tool, for instance the form of valve,as shown at 20, the valve is arranged so that its stem. 21

will be disposed in the recess 31' of the posts 25 and 26 for beingseated in the \I-shaped bearings 32 and'so that the beveled periphery ofthe head 19 of the valve will be in contact with the inclined cuttingedge 17 of .the blade of the cutter 14, as illustrated in Fig. 1. Thefree end of the stem of the valve will then extend some distance beyondone end of the tool, and to rotate the valve so that the beveledperiphery of its head will be properly faced'by being trimmedby thecutter 14, I may employ any desired form of implement,though I prefer touse a separate crank handle, as 38. The crank handle '38 may be of awell-known form, as shown, having an apertured sleeve, as 39, which isremovablyguided on the free end part of the stem of the valve, andthreaded in an opening in this sleeve is a set screw 40 for beingrotatably guided into engagement with the stem of the valve when thehandle is applied thereon. The handle 38 will then be tightly held onthe stem of the valve for manual rotation to revolve the head of thevalve in contact with the cutter for being faced; r i

Serving to'releasably hold the valve stem in the bearings 32 forrotation, adjustable clamps 41 and 42 are provided. The clamps 41 and 42are similarly formed, and each clamp has a threaded bolt 43. bolts ofeach clamp is screwed through the threaded opening 33 of the head 30 ofeach of the posts 25 and 26, and these bolts are of lengths so thattheir lower ends extend below the heads of the posts into'the recesses'31 thereof as well as extending some distances above the heads while onthe upper 'ends of each bolt is a head, as 44, to allow the bolts to beeasily screwed upwardly and downwardly in the heads of the posts forvarying the sp'acingbetween their lower One of the.

ends with relation to the bearings 32 of the posts. On the lowerendofthe bolt 43 of each of the clamps is a rotatably movable block 45,anchthese blocks are preferably substantially rectangular in shapes.Each of the blocks 45 has a recess 46 in its'top surface, and in theserecesses are disposed the lower. ends of the bolts 43, the recessesbeing of somewhatgreater diameters than the bolts to allow the blocks tobe revolubly movable thereon. Through a hole in one of the side wallsheld one end of a threade lar recesses of the bolts when the blocks arerevolubly moved. When the valve is arranged in the tool so that its stemis disposed in the V-shaped bearings 32 of the adjustable posts 25 and26, as above explained, the clamps 41 and 42 are operated to hold thestem rotatably in the bearings by turning the heads 44 to revolve thebolts 43 for moving the blocks 45 into engagement with the top of thestem of the valve, and the crank handle 38 is revolved to rotate thevalve for facing the valve.

In order to hold the head of the valve in rotatable contact with thecutter 14, an adjustable stop 47 is provided. The adjustable stop 47 hasa concaved circular head, or plate 48 adapted to be, moved into contactwith the head of the valve, and in an opening centrally of this )late isrotatably d bolt, as 49. In the standard 12 of the frame 10 of the toolis a threaded opening 50 the center of which is on longitudinalalinement with the center of the head of the valve, and in this openingis screwed the bolt 49 so that the concaved face of its head 48 willbe-in opposed relation to the head of the valve, while on the second endof the bolt is a rigid head 51 to allow the bolt to be readily rotated.When this bolt is adjustably rotated accordingly the head 48 will bemoved into contact with the head of the valve for releasably retainingthe valve head in engagement with the cutter 14 when being faced, andthe concaved head of the bolt being revoluble thereon it will alsorevolve with the rotation of the valve when turned by the crank handle38. Thus by the use of this tool valves when damaged by wear, orotherwise may be easily and properly refaced without requiring skilledworkmanship, and as many forms of valves are pro- .commodation in thetool.

vided with shouldered stems, the adjustable posts 25 and 26 will permitof their ac- Also by providing the adjustable cutter 14 valve heads ofvarious diameters may be readily faced by the use of the too]. i y

In the foregoing description, I have embodied the preferred form of myinvention, but I do not wish to be understood as limiting myselfthereto, as I am aware that modifications may be made therein withoutdeparting from the principle, or sacrificing any of .the advantages ofthis invention therefore I reserve to myself the right to make suchchanges as fairly fall within the scope thereof. 1

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1, A valve facing tool, comprising a baseplate havinga cutter adjustably supported above the base-plate, posts on thebase-plate adjustable toward and from each other, hearings in the postswhereby the stem of a valve may be removably and revolubly held so thatthe head of the valve will be in movable contact with the cutter, meanson each post to releasably retain the stem of the valve in the bearings,and a separate handle adapted to be detachably fastened on the stem ofthe valve so that the valve may be manually rotated. V

2. A valve facing tool, comprising a substantially rectangularbase-plate having an upwardly projecting standard, a cutter adustablvsupported on the standard above the base-plate, posts on the base-platein spaced relation to the standard, and said posts being adjustabletoward and from each other as well as being adjustable toward and fromsaid standard, hearings in the posts whereby the stem of a valve may beremovably and revolubly held so that the head of the valve will be inmovable contact with said cutter, and means on each'post to releasablyretain the stem of the valve in the bearings.

3. A valve facing tool, comprising a substantially rectangularbase-plate having an upwardly projecting standard, a cutter adjust-ablysupported on the standard above the base-plate, posts on the base-platein spaced relation to the standard, and said posts being adjustabletoward and from each other as well as being adjustable toward and fromsaid standard, bearings in the posts whereby the stem of a valve may beremov ably and revolubly held so that the head of the valve will be inmovable cont-act with said cutter, means on each post to releasablyretain the stem of the valve in the bearings, and a separate handleadapted to be detachably fastened on the stem of the valve so that thevalve may be manually rotated.

4. A valve facing tool, comprising a sub stantially rectangularbase-plate having on one of its ends an upwardly projecting standardwith an aper tured arm overhanging the base-plate, a blade adjustable inthe aperture of the arm, having a beveled cutting edge in opposedrelation to the standard, means for releasably locking the blade to thearm of the standard when adjusted, posts on the base-plate in spacedrelation to the standard, and said posts being adjustable toward andfrom each other as well as being adjustable toward and from saidstandard, hearings in' the posts whereby the stem of a valve may beremovably and revolubly held so that the head of the valve will be inmovable contact with the cutting edge of said blade, and means on eachpost to releasably retain the stem of the valve in the bearings.

A valve facing tool, comprising a substantially rectangular base-platehaving on one of its ends an upwardly projecting valve so that thevalve-may be manually rostandard with an apertured arm overhanging thebase-plate, a blade adjustable in the aperture of the arm, having a'beveled cutting edge in opposed relation to the standard, means forreleasably locking the blade to the arm of the standard when adjusted,posts on the base-plate in spaced relation to the standard, and saidposts being adjustable toward and from eachother as well as beingadjustable toward and from said standard, bearings in the posts wherebythe stem of a valve may be removably and revolubly held so that the headof the valve will be in movable contact with the cutting edge of saidblade, means 011 each post. to releasably retain the stem of the valvein the bearings, anda separate handle adapted to be detachably fastenedon the stem of the tated. j V

6. A valve facing tool, comprising a baseplate having an upwardlyprojecting standard with an apertured arm overhanging the base-plate, a'blade adjustable in the aperture of the arm, having a beveled cuttingedge in opposed relation to the standard, means for releasably lockingthe blade to the arm of the standard when adjusted, posts on thebase-plate in spaced relation tothe standard, and said posts beingadjustable toward and from each other aslwell as being adjustable towardand from said standard, bearings in the posts whereby the stem of avalve may be removably and revolubly held so that the head of the valvewill be in lIlOV- able contact with the cutting edge of said blade,means on each post to releasably retain the stem of the valve in thebearings, and means on the standard of the base, adjustable forrevolubly holding the head of the valve in revoluble engagement with thecutting blade. 7

7. A valve facing tool, comprising a baseplate having an upwardlyprojecting stand ard with an apertured arm overhanging the base-plate, ablade adjustable in the aperture of the arm, having a beveled cuttingedge in opposed relation tothe standard, means for releasably lockingthe blade to the arm of the standard when adjusted, posts on thebase-plate in spaced relation to the standard, and said posts beingadjustable toward and from each other as well as being adjustable towardand from said standard, bearings in the posts whereby the stem of avalve may be removably and revolublyheldso that the head of the valvewill be inmovable contact with the cuttingedge of said blade, means ineach post to releasably. retain the stem valve in the bearings, means onthe standard of the base, adjustable for revolubly holding the head ofthe valve in revoluble. engagement with the cutting blade, and aseparate handle adapted to be detachably fastened on the stem of thevalve so that the valve may be manually rotated.

'8. A ,valve facing tool, comprising a substantially rectangularbase-plate having on one of its ends an upwardly projecting standardwith an apertured arm overhang ing the base-plate, a cutter adjustablein the aperture of the arm, posts on thebase-plate 111 spaced relationtogthe standard for removably and revolubly supporting a valve, andsaid, posts being adjustable ton *ardand from each other as well asbeing adjustable toward and from said standard, means in each post toreleasably retain the stem of the valve on the posts, and means on thestandard of the base, adjustable for revolubly holding the head of thevalve in engagement with the cutting blade.

9. A valve facing tool, comprising a substantially rectangularbase-plate having on one of its ends an upwardly projecting standardwith an apertured arm overhanging the base-plate, a cutter adjustable inthe aperture of the arm, posts on the base-plate in spaced relation tothe standard for revolubly supporting a valve, and said posts beingadjustable toward and from each other as well as being adjustabletowardv andfrom said standard, means in each post to releasably retainthe stem of the valve on the posts, means on the standard of the base,adjustable for revolubly holding the head of the valve in revolubleengagement with the cutting blade, and a separate handle adapted to bedetachably fastened on the stem of the valve so that the valve may bemanually rotated.

10. A valve facing tool, comprising a substantially rectangularbase-plate having on one of its ends an upwardly projecting standardwith an apertured arm overhanging the base-plate, a beveled cutteradjustable in the aperture of the arm in opposed relation to thestandard, means for releasably locking the cutter to the arm of thestandard when adjusted, posts on the base plate adjustable toward andfrom standard whereby the stem of a valve may be removably and revolublyheld so that the head of the valve will bein'movable contact with thecutting edge of said cutter. and means on the standard ofthe base,adjust-- able for revolubly holding the head of the valve in revolubleengagement with the cutter.

v 11. Avalve facing tool, comprising a substantially rectangularbase-plate having on one of its ends an upwardly projecting standardwith an apertured arm overhanging the base-plate, a beveledcutteradjustable in the aperture of the arm, having a beveled euttmgedge 1n opposed relation to the standard, means for releasably lockingthe cutter to thearni of the standard when said 7 adjusted, posts on thebase-plate adjustable toward and from said standard whereby the stem ofa valve may be removably and revolubly held so that the head of thevalve will be in movable contact with the cutting edge of said cutter,means on the standard of the base, adjustable for revolubly holding thehead of the valve in revoluble engagement with the cutter, and aseparate handle 10 adapted to be detachably fastened on the stem of thevalve so that the valve may be manually rotated.

This specification signed and witnessed this7seventh (7th) day ofFebruary, A. D. 191

FREDERICK H. LEWIS.

Witnesses:

MARY E. HALFMANN, CHARLES DE BISSCIIOP.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

